X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_codesigning/lib/resources.h

diff --git a/Security/libsecurity_codesigning/lib/resources.h b/Security/libsecurity_codesigning/lib/resources.h
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+/*
+ * Copyright (c) 2006-2012,2014 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+//
+// resource directory construction and verification
+//
+#ifndef _H_RSIGN
+#define _H_RSIGN
+
+#include "codedirectory.h"
+#include <security_utilities/utilities.h>
+#include <security_utilities/cfutilities.h>
+#include <security_utilities/hashing.h>
+#include "regex.h"
+#include <CoreFoundation/CoreFoundation.h>
+#include <vector>
+#include <fts.h>
+
+namespace Security {
+namespace CodeSigning {
+
+
+//
+// The builder of ResourceDirectories.
+//
+// Note that this *is* a ResourceEnumerator, which can enumerate
+// its source directory once (only).
+//
+class ResourceBuilder {
+	NOCOPY(ResourceBuilder)
+public:
+	ResourceBuilder(const std::string &root, const std::string &relBase,
+		CFDictionaryRef rulesDict, CodeDirectory::HashAlgorithm hashType, bool strict, const MacOSErrorSet& toleratedErrors);
+	~ResourceBuilder();
+
+	enum {
+		optional = 0x01,				// may be absent at runtime
+		omitted = 0x02,					// do not seal even if present
+		nested = 0x04,					// nested code (recursively signed)
+		exclusion = 0x10,				// overriding exclusion (stop looking)
+		top = 0x20,						// special top directory handling
+	};
+	
+	typedef unsigned int Weight;
+	
+public:
+	class Rule : private regex_t {
+	public:
+		Rule(const std::string &pattern, Weight weight, uint32_t flags);
+		~Rule();
+		
+		bool match(const char *s) const;
+		
+		const Weight weight;
+		const uint32_t flags;
+		std::string source;
+	};
+	void addRule(Rule *rule) { mRules.push_back(rule); }
+	void addExclusion(const std::string &pattern) { mRules.insert(mRules.begin(), new Rule(pattern, 0, exclusion)); }
+
+	static std::string escapeRE(const std::string &s);
+	
+	typedef void (^Scanner)(FTSENT *ent, uint32_t flags, const char *relpath, Rule *rule);
+	void scan(Scanner next);
+	bool includes(string path) const;
+	Rule *findRule(string path) const;
+
+	DynamicHash *getHash() const { return CodeDirectory::hashFor(this->mHashType); }
+	CFDataRef hashFile(const char *path) const;
+	
+	CFDictionaryRef rules() const { return mRawRules; }
+
+protected:
+	void addRule(CFTypeRef key, CFTypeRef value);
+	
+private:
+	std::string mRoot, mRelBase;
+	FTS *mFTS;
+	CFCopyRef<CFDictionaryRef> mRawRules;
+	typedef std::vector<Rule *> Rules;
+	Rules mRules;
+	CodeDirectory::HashAlgorithm mHashType;
+	bool mCheckUnreadable;
+	bool mCheckUnknownType;
+};
+
+
+//
+// The "seal" on a single resource.
+//
+class ResourceSeal {
+public:
+	ResourceSeal(CFTypeRef ref);
+
+public:
+	operator bool () const { return mHash; }
+	bool operator ! () const { return mHash == NULL; }
+	
+	const SHA1::Byte *hash() const { return CFDataGetBytePtr(mHash); }
+	bool nested() const { return mFlags & ResourceBuilder::nested; }
+	bool optional() const { return mFlags & ResourceBuilder::optional; }
+	CFDictionaryRef dict() const { return mDict; }
+	CFStringRef requirement() const { return mRequirement; }
+	CFStringRef link() const { return mLink; }
+
+private:
+	CFDictionaryRef mDict;
+	CFDataRef mHash;
+	CFStringRef mRequirement;
+	CFStringRef mLink;
+	uint32_t mFlags;
+};
+
+
+} // end namespace CodeSigning
+} // end namespace Security
+
+#endif // !_H_RSIGN